package cn.tedu.egarticle.base.filter;

import cn.tedu.egarticle.base.exception.NotLoggedFilterException;
import cn.tedu.egarticle.pojo.vo.UserVO;
import lombok.extern.slf4j.Slf4j;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

@Slf4j
@WebFilter(filterName = "LoginCheckFilter", urlPatterns = "/v1/user/article")
public class LoginCheckFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        log.debug("");
    }
    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        log.debug("过滤器校验登录....");
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        HttpSession session = request.getSession(false);
        UserVO userVO = (session != null) ? (UserVO) session.getAttribute("user") : null;
        if (userVO == null) {
            log.warn("用户未登录，拒绝访问");
            response.sendRedirect("/index.html");
//            throw new NotLoggedFilterException();
        } else {
            filterChain.doFilter(request, response);
        }
    }
    @Override
    public void destroy() {
        log.debug("");
    }


}
